Discovery: 25 years of spaceflight

Discovery: 25 years of spaceflight

US space shuttle Discovery lifted off for its final flight from NASA's Kennedy Space Centre in Florida to deliver a new module and critical supplies to the International Space Station, late Thursday night.

The STS-133 mission is delivering the Permanent Multipurpose Module, a facility created from the Multi-Purpose Logistics Module named Leonardo. The module can support microgravity experiments in areas such as fluid physics, materials science, biology and biotechnology.

Inside the PMM is Robonaut 2, a dextrous robot that will become a permanent resident of the station. Discovery also is carrying critical spare components to the space station and the Express Logistics Carrier 4, an external platform that holds large equipment.

"With Discovery's mission, the United States once again reaches for new heights, pushes the boundaries of human achievement and contributes to our long-term future in space," NASA Administrator Charles Bolden said.

"Discovery's crew -- including the first-ever dexterous robot crew member, Robonaut 2 -- will continue America's leadership in human and robotic spaceflight, and support important scientific and technical research aboard the space station."

STS-133 Commander Steve Lindsey will command the flight. He is joined on the mission by Pilot Eric Boe and Mission Specialists Alvin Drew, Steve Bowen, Michael Barratt and Nicole Stott.

Bowen replaced Tim Kopra as mission specialist 2 following a bicycle injury on January 15 that prohibited Kopra from supporting the launch window. Bowen last flew on Atlantis in May 2010 as part of the STS-132 crew. Flying on the STS-133 mission will make Bowen the first astronaut ever to fly on consecutive missions.

The shuttle crew is scheduled to dock to the station on Saturday. The mission's two spacewalks will focus on outfitting the station and storing spare components outside the complex.